[luatex] Hyphenation in plain TeX

[Mojca Miklavec]

On Fri, Oct 8, 2010 at 10:49, Vladimir Lomov wrote:
> ** Khaled Hosny [2010-10-08 10:21:17 +0200]:
>
>> The \uccode/\lccode is not set for anything but ASCII (or whatever TeX
>> engine internally have), XeTeX sets it for the entire Unicode charset
>> in the format, but we don't yet for LuaTeX, so any hyphenation requiring
>> characters outside ASCII will not work out of box (or at least this is
>> my understanding).
> AFAIK, ASCII is 7-bit encoding so neither German nor French don't fir
> into ASCII.

Sure, but in German or French it's only "every tenth" letter that is
problematic, so TeX will still hyphenate somewhere using the remaining
nine ascii ones. It will definitely miss many allowed hyphenations,
but it will still look OK. While in Russian it is every single letter
that lacks lccode setting, so you won't get any hyphenation at all
unless you set those codes.

Mojca